build: Revert known-good to 1.1.97 header

Reverting known-good file to 1.1.97 due to a spec bug introduced in the
1.1.99 header

Change-Id: Idaebd56d69ecd8736fc603a3bc4e4ce3e9b7a7d8
diff --git a/scripts/known_good.json b/scripts/known_good.json
index 1d9d314..d87fe56 100644
--- a/scripts/known_good.json
+++ b/scripts/known_good.json
@@ -6,7 +6,7 @@
       "sub_dir" : "Vulkan-Headers",
       "build_dir" : "Vulkan-Headers/build",
       "install_dir" : "Vulkan-Headers/build/install",
-      "commit" : "v1.1.99"
+      "commit" : "v1.1.97"
     }
   ],
   "install_names" : {